Device to guide a band-shaped recording medium between successively arranged print groups in a printing apparatus

Abstract

A device to turn band-shaped recording media between two print groups is described. The device can include an observation region for the printing region that extends across at least one print side. Water-cooled cooling rollers can be arranged in the intake region of the turning device to cool the recording medium.

What is claimed is: 
     
         1 . A device to guide a band-shaped recording medium between two print groups, the device comprising:
 a paper intake channel including a first deflection device with a sloped guidance element and a graduated guidance element, the paper intake channel being configured to deflect the recording medium, having a printing region facing in an upward direction, from a supply direction into a visibility region and traveling orthogonal to the supply direction, wherein the visibility region is configured to frontally visibly present the printing region; and   a paper exit channel including a second deflection channel with a sloped guidance element and a graduated guidance element, the paper exit channel being configured to deflect the recording medium supplied from the visibility region in an exit direction with printing region facing in a downward direction, wherein the visibility region includes an observation region for the printing region that extends at least across a print side.   
     
     
         2 . The device according to  claim 1 , further comprising: a cooling device arranged in a region of the paper intake channel. 
     
     
         3 . The device according to  claim 2 , wherein the cooling device comprises at least one cooling roller. 
     
     
         4 . The device according to  claim 2 , wherein the cooling device is a water-cooled cooling device. 
     
     
         5 . The device according to  claim 1 , further comprising a controller that is configured to decrease the transport velocity of the recording medium to a reading velocity based on a visibility function. 
     
     
         6 . The device according to  claim 1 , further comprising a housing including a viewing window that provides visible access to the visibility region. 
     
     
         7 . The device according to  claim 6 , further comprising an illumination device associated with the printing region that is configured to illuminate the printing region. 
     
     
         8 . The device according to  claim 1 , further comprising an optical scanning device associated with the printing region that is configured to optically scan the printing region. 
     
     
         9 . The device according to  claim 8 , wherein the optical scanning device is configured to monitor optical parameters of the printing region. 
     
     
         10 . The device according to  claim 1 , further comprising a display arranged adjacent to the visibility region and configured to display a nominal printing region for comparison to the printing region. 
     
     
         11 . The device according to  claim 1 , further comprising a print group configured as an ink printing device. 
     
     
         12 . A printer operable to print an image on a band-shaped recording medium
 a first print group configured to print an image on a first side of the recording medium in a printing region;   a paper intake channel configured to accept the recording medium having the image printed on the first side of the recording medium, the paper intake channel including a first deflector with a sloped guide and a graduated guide, the paper intake channel being configured to deflect the recording medium, having the printing region facing in a first direction, from a supply direction into a visualizer and traveling orthogonal to the supply direction, wherein the visualizer is configured to present the printing region of the recording medium;   a paper exit channel including a second deflector with a sloped guide and a graduated guide, the paper exit channel being configured to deflect the recording medium supplied from the visualizer in an exit direction with printing region facing in a second direction opposite the first direction, wherein the visualizer includes an observation window for the printing region that extends at least across a print side of the recording medium; and   a second print group configured to:
 receive the recording medium having the print region facing in the second direction; and 
 print another image on a second side of the recording medium opposite the first side in a second printing region of the recording medium. 
   
     
     
         13 . The printer according to  claim 12 , wherein the paper intake channel and the paper exit channel are positioned between the first and the second print groups. 
     
     
         14 . The printer according to  claim 12 , further comprising a controller that is configured to decrease the transport velocity of the recording medium to a reading velocity based on a visibility function. 
     
     
         15 . The printer according to  claim 14 , wherein the reading velocity facilitates a visual inspection of the printed image in the printing region.